Saxon

The message in the subject line may be produced when a match pattern that is compiled as a GeneralPositionalPattern contains a call on current() within a predicate. The class GeneralPositionalPredicate is used for a particular class of patterns whose result is sensitive, or potentially sensitive, to the position of a node relative to other nodes. In the particular case in question however GeneralPositionalPredicate was used when there was no position-sensitivity - see the reopening of bug 1908. A patch to GeneralPositionalPattern is being committed that causes calls on current() to be properly resolved.